Hertfordshire · London and the South East
Throcking Roof Leak Investigation
We take a careful look at the leaking roof at your property in Throcking, with photographs and a written report.
- Water marks that spread in wet weather
- Damp patches next to the stack
- Drips in the loft during heavy rain
The survey, step by step
We don’t take risks to get a closer look. Everything that can safely be seen is inspected, and anything we can’t see is noted in the report. The survey typically takes roughly 1–2 hours, more where the leak is intermittent or the roof is large. Somewhere like Throcking needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. On the day, we inspect everything that’s safely in view, inside and out.
- You pick a Basic, Standard or Premium Survey.
- We agree a date, including weekends.
- The investigation works from the stain back to the roof.
- Where it is useful and included, we take moisture readings and use thermal imaging.
- The report explains the likely entry point and what needs attention.
Before we arrive
- Note where any stains or damp appear
- Clear the way to the loft hatch
- Mention any parking restrictions on your street
Getting a price
Buyers should book once an offer has been accepted, so you have the findings in time to act on them before you exchange. For any other survey, just ring 07833 053749 or send us an email when you’re ready.
Related advice
Roof leak investigation in Throcking: what you get
Older homes have more places for water to get in. Worn lead, tired valley linings and blocked parapet outlets are frequent causes. If your home has a butterfly roof, the central valley gutter is a common culprit in heavy rain. We check parapets, valleys and flashings from every safe viewpoint. The findings are recorded with photos. If you’ve noticed leaks below a flat extension roof and stains around a skylight, a survey will tell you what’s going on, on chimney stacks, rooflights and dormers and slate and tile slopes alike.
For a small place like Throcking, the inspection is the same as anywhere: the journey and access are just planned beforehand. It is useful to know where the water appears, in what weather, and what you’ve seen outside, along with any repairs done before. If you have photos of the water coming in, they help as well.
Where we can’t see part of the leaking roof, the report says so. That way, it’s clear what was covered and what wasn’t, and what we’d suggest next.
- Location
- Throcking (SG9)
- Region
- Hertfordshire
- Price
- From £150 inc. VAT
- Reports
- Emailed report with photos and recommendations
- Appointments
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
More services for Throcking
How we price roof leak investigations
A few things affect what a survey costs:
- How tall the building is and how easy the roof is to see
- Extensions, dormers and garages with roofs of their own
- Basic, Standard or Premium
- Whether it’s a home or a commercial building
All our prices include VAT. Our price is from £150, including VAT. We confirm the price for your roof before booking.
What we need to know
The more you tell us, the easier it is to price the survey. When you contact us, it helps to mention:
- The style of property, from a terrace to a block
- Photos of the roof, taken safely from ground level or a window
- Dates you are working to, such as exchange
- Where the property is, with the postcode
Getting a price is simple: just call 07833 053749 or email us, tell us about the property and we will explain which survey suits. We confirm the price before anything is booked.
Can I check my roof myself?
The one thing to avoid is getting up close. Roofs are fragile and slippery, and a fall can be serious. That part is for a survey.
A lot can be seen from ground level. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Never climb onto the roof to look.
Landlord and commercial surveys in Throcking
If you own several properties, you can book surveys for several addresses. To arrange surveys for several addresses, phone 07833 053749 or send us an email.
Letting agents often book on a landlord’s behalf. Access is agreed with the tenant in advance.
Tips from our surveys
A few practical points come up again and again on our surveys. They apply to most roofs:
- Tell us about any past repairs to the roof
- Keep a photo record of the damp patch
- Check whether pipes or tanks run near the stain
- Write down the wind direction and rain when it leaks
Standard includes a follow-up consultation to talk the findings through, while Premium includes one in person. It is a chance to ask about anything in the report.
Plan a roof survey every few years. Flashings, valleys and flat roof details are frequent weak points, and wear is easier to deal with before water gets in.
Signs you need a roof leak investigation in Throcking
Flat roofs fail with age and wear. A felt roof frequently lasts around 15 to 20 years, and splits, blisters and lifting laps let water in. Leaks frequently start at the edges, upstands and outlets.
A survey can pick up problems such as:
- Leaks at a dormer or roof window
- Damp underlay across a wide area
- Water through the ceiling under a flat roof
- Leaks that appear only in driving rain
If you own one of the older houses in the streets near Holy Trinity Church, lead flashings, valleys and old chimneys are typical places for water to get in.
Choosing a roof surveyor
- What insurance they carry
- What exactly goes into their report
- How much experience they have with roofs like yours
- What happens after the report arrives
Questions from Throcking
Is my home in Throcking listed or in a conservation area?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Will you come out to Throcking?
Yes, we do. We cover the whole of London and South East England, from towns to the smallest villages. Longer journeys are simply planned ahead of time.
Will you walk on the roof?
Not unless it is safe. Safe viewpoints, the loft space and a drone where it applies cover most of what’s needed, and anything out of sight is recorded in the report.
Why doesn’t the damp patch line up with the hole?
Rain that gets in will run along whatever it lands on. On a pitched roof it frequently runs down a rafter before it shows. Following that route is what our investigation does.
How much does a roof leak investigation cost in Throcking?
Prices start from £150, including VAT. We confirm the exact price before you book, and it depends on the roof’s size, access and the package you choose. To get a price, call 07833 053749 or drop us an email.
Will you definitely find the leak?
We can’t promise to find every leak on one visit. Most leave clues we can follow, but some only appear in certain weather. The report sets out what we found and the most likely routes.
Are you structural engineers?
No. We note visible signs such as sagging or deflection, but we’re not structural engineers and don’t carry out calculations. If we think you need an engineer, the report says so.
What a roof leak investigation looks like in Throcking
If your home is older, it’s worth knowing whether it is listed or in a conservation area before planning roof work. Changes that affect a listed building’s special interest need listed building consent, and councils can also use Article 4 directions to control changes in conservation areas. Slate and clay tile are the usual coverings on older South East houses, with concrete tiles on many later estates, with flat-roofed extensions, dormers and garages common everywhere. The covering and its details give the first clues when tracing where water is coming from.
Anyone responsible for a site like Freman College will know that on a building that size, finding the source of a drip means looking well beyond the stain.
Throcking is about 6 miles north-east of Stevenage, in Hertfordshire. We carry out roof leak investigations for homes and businesses in Throcking. We cover towns and villages across Hertfordshire. Our Chelmsford page covers surveys nearby.
All of SG9 is within our area for roof leak investigations. We also cover Cottered (1 mile south-west), Chipping (1 mile north-east), Buntingford (2 miles east), Aspenden (2 miles south-east) and Layston (2 miles east). We also work in nearby towns like Stevenage (6 miles south-west), Bishop's Stortford (11 miles south-east), Welwyn Garden City (12 miles south-west), Hitchin (9 miles west), Hoddesdon (14 miles south) and Hatfield (15 miles south-west).
Near you in Throcking
Nearby you will also find Clothall Castle (4.1 miles west). Not far away are Hawkins Wood.